Protective film



FIG. 1 is a top front perspective view of a protective film showing the claimed design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines in the figures show portions of the protective film that form no part of the claimed design.

The oblique shade lines in the figures show transparency or translucency. 

CLAIM The ornamental design for a protective film, as shown and described. 